
import 'package:flutter/material.dart';





abstract class FunctionInterface {

  // ...定义实例变量和方法...
  Future<String> sendMessage(dynamic msg);
  void receiveMessage();

  void showToast(String msg);
  void showLog(String msg);

  void startActivity(String activityName);
  void startFlutter(BuildContext context,Widget widget);



}
